Cock.



P. MUELLER & A. G. SGHUERMANN. COCK.

APPLICATION FILED SEPT.3,1908.

Patented Sept? 21, 1909.

Inwfefliors. finton Q. gchuermann. Philip 'M leller Jliltmrneg.

. MUELLER AND ANTON C. SCHUER Y; H. MUELLER I/IANUFACTURING COM N UFILLINOIS.

Application filed September Specification of Letters Patent.

F DECATUR, ILLINOIS, ASSIGNORS OF DECATUR, ILLINOIS, A CORPORA- MANN,PANY.

COCK.

Patented Sept. 21, 1909.,

3, 1908, Serial No. 451,588.

i whom is may cancer? he it known that we,Prr1LIr MUELLER and tSCMUERMANN, citizens of the States, and residents of Decatur,

State of Illinois, have in- .nd useful Improvements in our preferredmanner of carryset forth in the folexaotdescription, particularlyspeciand i the invention is full, clear, and hating with claims henovelty. lnis invention relates to water distribulion, more especiallyto cocks and faucetsthat type which have reciprocating s; and ts objectis to iniprove the conof the roller support infaucets of cha .cer whererollers are employed be- "idulating ways.

on is exemplified in the strucidescribed ahd is illustrated aself-closing basin cock, al-

be clear thatiit would be in any structure wherein the if the shank byits handle is inrcci 'n'ocate the stem to open the t is obvious that thelatter need not hy'pressure and that other details Oi s ucture forthherein are not cs ial to the present invention which con- 3 mainly in aring-shaped. spider with three or more inwardly projecting pins on.

wu'ah are mounted the rollers that travel on sl i l in dra.wings-l igure1 is acentral vertica etion through a basin cock of one type whereinthis invention can well be emto l the parts being shown at rest with meclosed by pressure. Fig. 2 is a ilar section of the cap (dotted) and theand its disk depressed therein so as to the ways; and Fig. 3'is an en edplan view of the spider with one in place, anotlierremoved,and the thirdin section. I

The cock body 1 has a spout 2 and a valve seat 3, and through the latterprojects the stem 15 suitably guided so that it may move vertically. Atits lower end the stem carries the valve 18 which is here shown asmounted on the top' of an inverted cupshaped shell 17. The latter fitsrather closely "having a hollow shank e of the cock body and l inletopenings 15, and than the interior of the,

the upper end ot the plug is dished to produce a chamber 20 between itand the shell 17. The construction here shown is such that the pressureof water flowing tln'ough the inlets 15 and passing betweer shell intothe chamber 20, will hold the valve tightly'closed against its scat flas seen in Fig. l; and when it is desirecbto open the valve the stem l6may be depressed by forces from the chamber 20 the water-that hasaccumulated therein and drives it outward in a direction opposed to theflow of the incoming waterwhich ob iously passes upward through theannular space around the shell. However, as above stated, we do notlimit ourselves to the use of the present invention in avalve of thisconstruction, but have illustrated the same one desirable type of thwhich it may be used to advangeeks wi taut v The upper end of the cockbody is externally threaded. and screwed thereon is the cap (3 whichisperforated at its apex for the passagcof the shank 8 which carries aremovable. handle 10 as shown. Secure-d to the lower end of the shankand mounted for notation within'the cap is a disk 9, and the contiguousfaces at the topiof this disk and within the top of the cap providedwith I undulating ways 7 in each of which there should be at least threetracks or undulations. Between these ways are in ountcd roll- "and theposition and proportion of when the valve is closed as seen in Fig; isin contact with the bottom of the disk 9 and the rollers lie in thedepressions between the two tracks 'C mine now more phrticularly tothe-pres cut invention, the rolldrs 12 are supported in place wering-shapedspider ll of considerably less height tllflil\ljll6 diameterof an yroller and itself of less diameter thltn the interior of the cap.From this; spider three pins 11 project radially inw? 'd, and on thesepins the rollers are journalilos shown. For this purpose the inner endof the bore through each roller is countersunk slightly as shown at 12and the inner end of the pin.

is upset into said countersink as shown at 11. The outer ends of therollers rounded off transversely on agreater curvature 1 the plug" andmeans to be described below, which actionl\ the ripper end of thest-em16f ring as shown at 152 so that. they willv rotate their journals withthe least possible friction against the ring. The length of the rollersand pins is such that they will not quite contact with the shank 8, andtheir diameter and the material of which they are composed are mlatterswhich I prefer to leave to the manufacturer, 4 Xperiment' has shown thatthe use of a ring-shaped spider in this connection will hold the rollersequally spaced at all times, whether the various tracks of the ways beaccurately identical or not, and yet the "ciently to open the valve. theconstruction shown,

spider will not rub against the wall of the cap nor the inner ends ofthe rollers or pins of which actions take place rather s owly but it isobvious that the present invention.

" lifted 0a of the shank;

could be applied to a valve which was closed by a spring, and wecontemplate the use of the same in any place where it would be ofadvantage.

The parts are disconnected as best illustrated in Fig. 2.- from the-cock body and'with it is removed the shank and its disk, its handle isthen do: tached and the other parts drawn out of the cap, and finallythe spider and rollers are It'may not inall cases be necessary to upsetthe inner ends of'the pins, but one advantage of doin so will appear atthis time because thero lers cannot become accidentally from the spider.

The use of a r1ng-shaped spider eliminates the possibility that one ormore of the rol ers shall leav'ethetrack, keeps them "equally" spacedan'd at all; times'in contact with the undulations and ready for"service, prevents them from working", radially outward and contactingwith the; cap against which they might stick or into which they mightwear I a groove. andf the upset inner ends of the First the capisunscrewed disconnected ends of said-pins being upset w thin said pinsprevent the rollers from working inward and coming in contact with theshank.

What is claimed as new is:

1-. The combination with two memb ers lsgving opposed annular undulatedways, i for turining one-:member relatively to the other; of a series ofcylindrical a d means rollers disposed between saidwayisi'a' ring Iers,an i shaped spider surrounding the ro pins projecting from the spiderradially inward and on which said rollers arejour:

naled,'the outer ends of said rollersb being rounded ofi transverselyon'a greater curvature than theinterior of said ring.

2. The combination with two members v having opposed annular undulatedvways, a

1 shank on one projecting through a' central hole in the other, a cap onthe latter merinber surrounding the. und lated way of the former member,and means for turning one 7,

member'relativelyto the other; of a "series-i,

of rollers disposed between said ways, a

ring shaped spider surrounding therollers and standing within said capand betwee'n I said ways, and pins ,pro ectin'g from the.

spider radially inward and" on whichsaid rollers arejournaled, theinner'euds of said pins bein free and out of contactwiththe shank anhaving heads for the purpose'set 'forth. 4

3. The combination with two mem having opposed annular undulated fwa'and means forturnin one member To a: tively to the other; 0? a seriesi-of rollers disposed between said ,ways, a ring-shape spidersurrounding'therollersj, and pins pro- .jectin from the spider radiallyinward and on w ich said rollers-are Ournaled, the outer ends oftherollers being rounded off transversely on a greater curvature than theinterior of said ring and the inner ends of their bores countersunk, andthe inner countersinks. v

In testimony whereof, we have hereunto I i subscribed our signatures,this 28th day of August "A513. 1908.

' PHILIP MUELLER.

ANTQN" Q, :$CHUERMANN. Witnesses :v

E. BROWN,

VIRGINIA HAMILTON.

